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Summary of Contents for Endress+Hauser GM35
- Page 1 Products Solutions Services 8029930/AE00/V4-1/2025-05 Operating Instructions GM35 Gas Analyzer, Probe Version...
- Page 2 This work is protected by copyright. Any rights derived from the copyright shall be reserved for Endress+Hauser SICK GmbH+Co. KG. Reproduction of this document or parts of this document is only permissible within the limits of the legal determination of Copyright Law.
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Page 3: Table Of Contents
GM35 Contents Contents About this document................Function of this document................Scope of application..................Target groups....................Further information..................Symbols and document conventions............1.5.1 Warning symbols................1.5.2 Warning levels / Signal words............1.5.3 Information symbols..............Data integrity....................Safety information................. Main operating information................ - Page 4 Contents GM35 5.6.9 Fitting the control unit..............Electrical installation................28 Safety......................Tools required....................Overview of electrical connection steps............Connection overview..................6.4.1 Lines overview................6.4.2 Laying lines..................Electrical connection of the control unit............6.5.1 Correct connection of the CAN bus line........
- Page 5 11.3 Preparing the device ready for shipping............11.4 Environmentally compatible disposal ............11.4.1 Removing the battery..............Technical data..................64 12.1 GM35 system....................12.2 Sender/receiver unit..................12.3 Open GMP measuring probe................. 12.4 Gas-testable GPP measuring probe.............. 12.5 Control unit, AWE, sheet steel enclosure............
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Page 6: About This Document
These Operating Instructions are only applicable for the measuring device described in the product identification. They are not applicable to other Endress+Hauser measuring devices. The standards referred to in these Operating Instructions are to be observed in the respec‐ tive valid version. -
Page 7: Warning Levels / Signal Words
Important information on electric or electronic functions Data integrity Endress+Hauser uses standardized data interfaces, such as standard IP technology, in its products. The focus here is on the availability of the products and their properties. Endress+Hauser always assumes the integrity and confidentiality of data and rights affected in connection with the use of the products are ensured by the customer. -
Page 8: Safety Information
Safety information GM35 Safety information Main operating information NOTICE Risk for system safety through work on the device not described in these Operating Instructions Work on the device not described in these Operating Instructions or associated documents can lead to unsafe operation of the measuring system and therefore endanger plant safety. -
Page 9: Warning Information On The Device
Do not remove, add or modify any components to or on the device unless described and specified in the official manufacturer information. Use only original spare parts and wear and tear parts from Endress+Hauser. If you do not observe this: The manufacturer's warranty becomes void. - Page 10 Read the Operating Instructions Read and observe these Operating Instructions. ► Observe all safety instructions. ► If there is something you do not understand: Contact Endress+Hauser Service. ► Retention of documents These Operating Instructions: Must be available for reference. ►...
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Page 11: Product Description
Product description Product description Product identification Product name GM35 Device version Measuring Probe Version Manufacturer Endress+Hauser SICK GmbH+Co. KG Bergener Ring 27 · D-01458 Ottendorf-Okrilla · Germany • Type plates Sender/receiver unit: On right side • On purge air fixture: On tube • Control unit: On right side Product characteristics •... -
Page 12: Layout And Function
Product description GM35 Layout and function Operation Measuring Service Evaluation Unit Warnin Ref. conditions Malfunction Hum: wet diag maint Figure 2: Measuring device components layout Connection lines Purge air hose (only for GMP) Sender/receiver unit Purge air attachment, integrated pressure and temperature sensor... -
Page 13: Options
NOTE As standard, Endress+Hauser recommends a separate purge air unit for the sender/ receiver unit when using the GMP measuring probe to ensure an optimal purge air supply. If the supply of purge air is insufficient, hot and corrosive gases can destroy the measuring device within a few minutes. -
Page 14: Check Cycle
Product description GM35 Air heater for purge air supply To avoid condensation in the purge air. An air heater is required when the difference between gas temperature and dew point temperature is too small. The following formula serves as a guideline: •... -
Page 15: Open Gmp Measuring Probe In Detail
GM35 Product description 3.7.1 Open GMP measuring probe in detail Figure 3: Open measuring probe GMP Probe end with reflector assembly Air slots: Purge air outlet 90° to gas flow (directed purge air) Process flange: Attached to flange with tube (at installation location) -
Page 16: Gas-Testable Gpp Measuring Probe In Detail
Product description GM35 3.7.2 Gas-testable GPP measuring probe in detail Figure 4: Gas-testable measuring probe GPP Probe end with reflector assembly Process flange: Attached to flange with tube (at installation location) Test gas attachment with connections Integrated temperature sensor PT1000... -
Page 17: Transport And Storage
GM35 Transport and storage Transport and storage Storage Clean all components of the measuring device (not the optical surfaces) with slightly ► moistened cleaning cloths. Use a mild cleaning agent here. Protect the openings of the sender/receiver-unit and measuring probe from atmos‐... -
Page 18: Mounting
Mounting GM35 Mounting Safety WARNING Risk of injury through improper assembly work All assembly work must be carried out only by authorized persons who, based on their training and knowledge as well as knowledge of the relevant regulations, can assess the tasks given and recognize the hazards involved. -
Page 19: Checking The Scope Of Delivery
Installing the required device components at the measuring point before commission‐ ing. Installing the measuring device at the measuring point (carried out by Endress+Hauser Service during commissioning). NOTICE GMP measuring probe device damage: To prevent contamination of the optical surfaces, the purge air must be connected immediately after installation. - Page 20 Mounting GM35 DANGER Health risk through hot or toxic gases/dusts in the measuring duct The measuring duct can contain hot or toxic gases or dust deposits which can escape when opening the duct-side flange. Even if the measuring duct is out of operation during the installation, escaping gases can lead to severe damage to health.
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Page 21: Installing The Purge Air Unit
GM35 Mounting Steps Cut openings on the gas duct for the flange with tube. Position the flange with tube. Make sure: Marking “TOP” must point vertically upwards independent of the gas duct angle. ° The tube must project at least 30 mm into the gas duct. -
Page 22: Fitting The Measuring Probe On The Flange With Tube
Mounting GM35 5.6.5.2 Removing the transport safety device of the GPP measuring probe Figure 7: Transport safety device of the GPP measuring probe Filter with protective cover Protective cap for covering Steps Remove the protective cover of the filter. Remove the protective cap. -
Page 23: Putting The Purge Air Unit Into Operation
GM35 Mounting Steps Fit the measuring probe with pre-fitted purge air attachment on the flange with tube. Tighten the nuts. NOTE The installation steps of the measuring probe on the flange with tube are identical for all measuring probes. 5.6.7... -
Page 24: Fitting The Flange Fixture On The Measuring Probe
Mounting GM35 5.6.8 Fitting the flange fixture on the measuring probe Figure 10: Fitting the flange fixture Flange fixture, sender/receiver unit Cup springs set (10 per fixture, positioned back-to-back) Sealing ring Lock nut with centering disc Purge air attachment ±0.5... -
Page 25: Fitting The Control Unit
GM35 Mounting Push the device flange onto the measuring probe. Position the centering discs. NOTICE Observe the direction of the centering disc: The convex side must fit into the groove on the purge air attachment. Tighten the self-locking nuts with a wrench (19 mm) so that the cup springs are slightly compressed and an even gap of approx. - Page 26 Mounting GM35 Steps Drill the holes according to the installation drawing (Ø 7.2 mm for M8). Fasten the control unit to the four fastening brackets. Control unit AWE (cast metal enclosure version) 117.5 Figure 13: Fitting the control unit AWE, cast metal enclosure (dimensions in mm) Steps Drill the holes according to the installation drawing (Ø...
- Page 27 GM35 Mounting Figure 14: Fitting the connection unit (dimensions in mm) Mounting hole (Ø 5 mm) Steps Install the connection unit Drill the holes according to the installation drawing (Ø 5 mm for M4). Remove the enclosure cover. To do this, unscrew the 4 screws.
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Page 28: Electrical Installation
Electrical installation GM35 Electrical installation Safety DANGER Danger to life through electric shock There is a risk of electric shock when working on the device with the voltage supply switched on. Before starting work on the device, ensure the voltage supply can be switched off in ►... -
Page 29: Tools Required
Before commissioning: Make the connections for the device components at the measuring point. During commissioning: Create the remaining necessary connections on the measur‐ ing device at the measuring point (will be carried out by Endress+Hauser Service during commissioning). Table 6: Overview of electrical connection steps... -
Page 30: Connection Overview
Electrical installation GM35 Connection overview Figure 15: Electrical wiring of device components Standard scope of delivery Option Provided by customer Connection line, purge air attachment and low-pressure monitor purge air unit (only for GMP measuring probe) Connecting line, sender/receiver unit and purge air attachment... -
Page 31: Lines Overview
GM35 Electrical installation 6.4.1 Lines overview Table 7: Lines overview No. Line Length [m] Scope of delivery Specification Purge air attachment, sender/receiver unit — purge air Included Prefabricated with plug-in unit low-pressure monitor (open line end) connector, open line end Sender/receiver unit —... -
Page 32: Correct Connection Of The Can Bus Line
Electrical installation GM35 6.5.1 Correct connection of the CAN bus line Figure 16: CAN bus line fitted correctly (shown on the AWE) M screw fitting on the control unit CAN bus line CAN bus line shielding M screw fitting fitted in the control unit 6.5.2... - Page 33 GM35 Electrical installation Control unit AWE Operation GM 35 Service Warning Evaluation Unit Malfunction diag maint Enter meas CAN2 Terminator RS 232 Power +5V +24V Analog in Analog out Digital out 0.. 20mA Digital in 0.. 20mA AC/DC 48V 30VA 1A...
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Page 34: Connecting The Grounding Conductor On The Control Unit
Electrical installation GM35 ! Failure (NC contact) " Maintenance request (NO contact) § Function control (NO contact) For SCU connection: Jumper not connected (not activated) ß For SCU connection: Jumper connected (activated) à CAN bus line: Color marking of wiring... -
Page 35: Connecting The Connection Unit (Option)
GM35 Electrical installation Connecting the connection unit (option) NOTE CAN BUS WIRING PROJECT PLANNING The following options are available for wiring the CAN bus connection between sender/ receiver transceiver unit and control unit: • Standard cable, 4 m, prefabricated. • Connection unit with ready-made, 4 m long line to the sender/receiver unit; wiring to the control unit is done with the customer's cable. -
Page 36: Commissioning
(hot/dangerous to health). You are capable of recognizing and preventing danger by possibly escaping gases. When one of these requirements is not met: Contact Endress+Hauser Customer Service or your local Endress+Hauser representa‐ ► tive. -
Page 37: Removing The Transport Safety Device Of The Sender/Receiver Unit
GM35 Commissioning Step Procedure Reference Fit the weather hood (option). see "Fitting the weather hood (option)", page 41 Start measuring operation. see "Starting measuring operation", page 42 Removing the transport safety device of the sender/receiver unit NOTE The front cover of the sender/receiver unit is clamped between the flange fixture and the enclosure. -
Page 38: Connecting The Sender/Receiver Unit With Measuring Probe
Commissioning GM35 Sender/receiver unit Figure 21: Fitting the sender/receiver unit on the flange fixture Quick-release fasteners Hinge pin Flange fixture Steps Insert the sender/receiver unit into the hinge. Insert the pin from the top downwards through the hinge. Fold the sender/receiver unit flange fixture together. -
Page 39: Fine Optical Alignment
GM35 Commissioning Connect the purge air unit low-pressure monitor. Connect the connection line between the sender/receiver unit and the GMP measur‐ ing probe. If necessary, connect the connection line to the connection unit (option). Connect the connection line to the control unit. - Page 40 Commissioning GM35 Description of the alignment tool on the sender/receiver unit Figure 24: Fine optical alignment on the sender/receiver unit Visor for fine optical alignment: 5 × 5-LED matrix for displaying the light beam on the reflector element Nut for vertical adjustment (Y)
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Page 41: Fitting The Weather Hood (Option)
GM35 Commissioning 7.10 Fitting the weather hood (option) Figure 25: Fitting the weather hood for the sender/receiver unit Knurled nut Spacer bolt Weather hood Sender/receiver unit Washer Spring washer Screw Material required • Fast curing epoxy resin two-component adhesives Steps Glue the two spacer bolts supplied onto the flange fixture of the sender/receiver unit each at a distance of 85 mm from the center. -
Page 42: Starting Measuring Operation
Quick check of Measuring screens on the LC display of the control unit: Using the Operating Instructions, see "Operating and display elements", page ► When malfunction or warning messages are present: If the error cause cannot be cleared: Contact Endress+Hauser Service. ► 7.11.1 Operating states Message on display... -
Page 43: Operation
GM35 Operation Operation Operating and display elements Operation Operation Operation GM35 GM 35 Measuring Measuring Service Service GM35 Measuring Evaluation Uni t Evaluation Uni t Operation Measuring GM35 Warning Warning Service Ref. conditions Ref. conditions Malfunction Malfunction Evaluation Unit Service... -
Page 44: Control Unit Menu Tree
Operation GM35 Control unit menu tree NOTE Menu texts are shown in English. 8.2.1 Menu tree, Measuring meas Menu level Explanation Measuring Measure • Current measured values: Depending on device version • Reference variables (wet, dry) 8.2.2 Menu tree, Diagnosis... - Page 45 GM35 Operation Menu level Explanation Settings Parameter settings/display of system components Configuration Components Measuring components: CO or CO Probe CAN connection (probe or cross-duct) Phys. Units Setting for units and reference values for individual gases Ref. conditions Average Avg. Time Setting for averaging time for device Meas.
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Page 46: Menu Tree, Calibration
Operation GM35 8.2.4 Menu tree, Calibration Menu level Explanation Calibration Calibration Check Cycle Check cycle for test purposes, e.g. after mainte‐ nance activities Zero Adjust Zero point determination, e.g., during commission‐ ing or maintenance tasks Boxmeasuring Checking measuring components with test gas... -
Page 47: Maintenance
GM35 Maintenance Maintenance Safety DANGER Danger to life through electric shock There is a risk of electric shock when working on the device with the voltage supply switched on. Before starting work on the device, ensure the voltage supply can be switched off in ►... -
Page 48: Maintenance Plan
"Cleaning the purge air unit", page 53 Check and/or clean purge air unit purge air unit Operating Instructions Check analyzer with span gas Normally carried out by Endress+Hauser Service. 1W = Weekly, 1M = Monthly, 1Y = Yearly 9.2.1 Maintenance protocol Log the following data: •... -
Page 49: Preparatory Work
► Check inspection window for soiling and clean. ► Check LEDs. ► If the control unit is damaged (e.g. LC display failure): Contact Endress+Hauser Serv‐ ► ice. Weather hood Check condition of the weather hood from the outside and inside. -
Page 50: Cleaning Optical Surfaces
Maintenance GM35 Steps Switch device off. Release the quick-release fasteners to open the sender/receiver unit . Immediately attach the cover on the device flange opening. Pull out the hinge pin (in the direction of the arrow) to release the hinge between the sender/receiver unit and device flange. -
Page 51: Cleaning The Optical Surface Of The Gpp Measuring Probe
GM35 Maintenance Figure 29: Optical surface of the GMP measuring probe Probe cover Screws Optical surface Steps Switch the device off. Allow the measuring probe to cool down to room temperature. Loosen the screws on the probe cover. Loosen the probe cover from the bayonet catch with a clockwise rotation and remove Blow dirt off the optical surface with compressed air. - Page 52 Maintenance GM35 Press filter element 2 together and take it out. Remove seals 3 at the top and bottom. Make sure that no residues remain. Blow dirt off optical surfaces 4 at the top and bottom with compressed air. If required: Clean the optical surfaces with an optics cleaning cloth and demineralized water.
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Page 53: Cleaning The Control Unit
(SLV4). Checking the function of the IR source Control unit AWE Press the “diag” button. Select menu Sensor Values → GM35 general → VIS AMP MR. ✓ Current sensor value is displayed. ✓ The value for the amplification: Max. 255 NOTE Perform a zero point adjustment after installing a new IR source module. -
Page 54: Troubleshooting
Troubleshooting GM35 Troubleshooting 10.1 Safety WARNING Health risk through contact with toxic gases The modules and devices contain enclosed, potentially dangerous gases that can escape should a defect or leak occur. Concentrations inside the closed unit can rise up to 350 ppm. -
Page 55: Monitoring And Diagnostic System
GM35 Troubleshooting CAUTION Safety when dismantling the sender/receiver unit with mounted measuring probe from the gas duct Safe pulling out of the measuring probe from the gas duct requires: ► – A safe working platform at the measuring point –... -
Page 56: Clearing Malfunctions On The Control Unit
Check CAN bus line from the control unit to the sender/receiver unit or to the connection unit. Malfunction occurs again. Replace the last connected component. Con‐ sult Endress+Hauser Service. 24V/5V supply defective Check 24V/5V supply. Replace control unit or printed circuit board. Contact Endress+Hauser Service. - Page 57 Check contamination of the optical surfaces. ► Clean if necessary, see "Cleaning optical surfa‐ ces", page If not successful, contact Endress+Hauser ► Service. CO com. No connection between CO module and CO mod‐ Check lines and plugs. Repair if necessary.
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Page 58: Warning Messages
Manual. Chopper freq. Chopper wheel frequency outside tolerance. Replace lamp module. ► If not successful, contact Endress+Hauser Service. ► CD: Filter watch SLV Purge air unit low-pressure monitor switches on Check purge air supply (blower, hoses), change filter ►... -
Page 59: Repairing Inadequate Purge Air Supply
Message Description Clearance CO2 Reference Deviation of control value measurement too Perform maintenance. ► large Contact Endress+Hauser Service. ► H2O Low sig. • Contamination of the H O measuring duct Check contamination of the optical surfaces. Clean ► if necessary. , see "Cleaning optical surfaces",... -
Page 60: Decommissioning
• You are capable of recognizing and preventing danger by possibly escaping gases. When one of these requirements is not met: Contact Endress+Hauser Service or your local Endress+Hauser representative. ► DANGER Hazard through gas escaping when the sender/receiver unit is swiveled out Overpressure in the gas duct can cause hot and/or noxious gases to escape when the sender/receiver unit is swiveled out. -
Page 61: Removing The Device
GM35 Decommissioning 11.2 Removing the device CAUTION Safety when dismantling the sender/receiver unit with mounted measuring probe from the gas duct Safe pulling out of the measuring probe from the gas duct requires: ► – A safe working platform at the measuring point –... -
Page 62: Preparing The Device Ready For Shipping
Preparing the device ready for shipping Before shipping: Contact your local Endress+Hauser representative. ► Your Endress+Hauser representative can advise you whether the defective device can ► be repaired locally or whether it would more advantageous for you to return the device for repair. -
Page 63: Removing The Battery
GM35 Decommissioning 11.4.1 Removing the battery To remove the battery, the AWE control unit must be dismounted. Figure 30: Removing the control unit Steps Disconnect the complete device (control unit and sender/receiver unit) from the power supply. Open control unit with control cabinet key. -
Page 64: Technical Data
Automatic check cycle for zero and reference point Options Control unit SCU (only for non-Ex areas) 12.2 Sender/receiver unit Table 18: Technical data, GM35 sender/receiver unit Description Analyzer unit of measuring system Degree of protection IP66 Dimensions (W × H × D) 291 mm ×... -
Page 65: Open Gmp Measuring Probe
GM35 Technical data Power supply • Voltage: 115 V AC / 230 V AC, ±10% (line voltage fluctua‐ tion) • Frequency: 48 ... 62 Hz • Power input: ≤ 350 W 12.3 Open GMP measuring probe Table 19: Technical data, open GMPmeasuring probe... -
Page 66: Control Unit, Awe, Cast Metal Enclosure
Technical data GM35 Degree of protection IP65 Analog outputs 3 outputs: • 0/4 ... 20 mA, 500 Ω • Electrically isolated Analog inputs 1 input: • 0 ... 20 mA, 100 Ω Digital outputs 3 relay contacts: • 48 V AC, 1 A, 60 W / 48 V DC, 1 A, 30 W •... -
Page 67: Connection Unit
GM35 Technical data Input Arrow buttons Function buttons Operation Menu-guided operation via LC-display and membrane keyboard Version Cast metal enclosure Dimensions (W × H × D) 289 mm × 370 mm × 138 mm Weight 8.6 kg • Power supply Voltage: 115 V / 230 V AC, ±10% (line voltage fluctuation) -
Page 68: Dimension Drawing, Sender/Receiver Unit
GM35 12.8 Dimension drawing, sender/receiver unit 531,7 99,7 Figure 31: GM35 sender/receiver unit (all dimensions in mm) Endress+Hauser O P E R A T I N G I N S T R U C T I O N S 8029930/AE00/V4-1/2025-05... -
Page 69: Dimension Drawing, Open Gmp Measuring Probe
GM35 Technical data 12.9 Dimension drawing, open GMP measuring probe 76,4 Ø 254 Ø 200 Ø 200 176,9 Ø 215,8 Figure 32: GMP measuring probe (all dimensions in mm) Table 24: Versions of the GMP measuring probe GMP measuring probe 1.000... -
Page 70: Dimension Drawing, Gas-Testable Gpp Measuring Probe
Technical data GM35 12.10 Dimension drawing, gas-testable GPP measuring probe Figure 33: GPP measuring probe (all dimensions in mm) Table 25: GPP measuring probe versions GPP measuring probe Length L3 Probe length, nominal Weight 1.500 1,624 1,063 2.000 2,108 1,547... -
Page 71: Dimension Drawing, Control Units
GM35 Technical data 12.11 Dimension drawing, control units Control unit AWE (sheet steel enclosure version) Figure 34: Control unit AWE (sheet steel enclosure version), dimensions in mm Control unit AWE (cast metal enclosure version) (10.24) (9.25) (11.38) Figure 35: Fitting the control unit AWE (sheet steel enclosure version), dimensions in mm... -
Page 72: Dimension Drawing, Flange With Tube, Dn125
Technical data GM35 12.12 Dimension drawing, flange with tube, DN125 240 / 500 / 1.000 Ø 200 Figure 36: Flange with tube, DN125 (dimensions in mm) 12.13 Dimension drawing, connection unit PG11 PG13.5 Figure 37: Dimensions, connection unit (dimensions in mm) -
Page 73: Dimension Drawing, Weather Hoods
GM35 Technical data 12.14 Dimension drawing, weather hoods Weatherproof cover for sender/receiver unit 282,5 12,5 Figure 38: Weather hood for sender/receiver unit (dimensions in mm) Endress+Hauser O P E R A T I N G I N S T R U C T I O N S... - Page 74 8029930/AE00/V4-1/2025-05 www.addresses.endress.com...
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